Solved

How to ignnore some websites

Posted on 2004-08-01
10
216 Views
Last Modified: 2012-05-05
I m storing links in vectors and then i vist each link to find out more links

sometimes a page requires a user to enter something hence i get the below exception

java.io.IOException: Server returned HTTP response code


How do i skip out these pages ? either by not storing them in the first place or if encoutered such a page skip it and move on to the next link in the vector
0
Comment
Question by:rimmer0007
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 3
  • 3
  • 2
  • +1
10 Comments
 
LVL 30

Accepted Solution

by:
GrandSchtroumpf earned 200 total points
ID: 11689013
just catch the exception and take appropriate action.
0
 
LVL 86

Assisted Solution

by:CEHJ
CEHJ earned 200 total points
ID: 11689021
0
 

Author Comment

by:rimmer0007
ID: 11689110
somthing like this

HTTP_UNAUTHORIZED =401;
http = (HttpURLConnection) url.openConnection();
                        
if(http.getResponseCode()== HTTP_UNAUTHORIZED )
{
      //move onto next link in vector                        
}
0
PeopleSoft Has Never Been Easier

PeopleSoft Adoption Made Smooth & Simple!

On-The-Job Training Is made Intuitive & Easy With WalkMe's On-Screen Guidance Tool.  Claim Your Free WalkMe Account Now

 
LVL 86

Assisted Solution

by:CEHJ
CEHJ earned 200 total points
ID: 11689224
Exactly. You don't need to define the constant - it's already defined:

if (http.getResponseCode()== HttpURLConnection.HTTP_UNAUTHORIZED )
0
 
LVL 92

Expert Comment

by:objects
ID: 11689729
you need to catch the exception anyway (to handle other failure cases).

for each link
{
   try
   {
      // attempt connection
   }
   catch (Exception ex)
   {
      // error occurred
   }
}
 
0
 
LVL 86

Expert Comment

by:CEHJ
ID: 11689737
You need to combine both techniques for proper control
0
 
LVL 92

Expert Comment

by:objects
ID: 11689752
not necessarily, plus there are *lots* of other response codes that also need to be handled.
0
 

Author Comment

by:rimmer0007
ID: 11704848
are there any quick ways of handling the other responses or am i going to have set up lots of if statements ?
0
 
LVL 92

Expert Comment

by:objects
ID: 11710722
a try/catch as suggested above should pick up many of them.
or perhaps just test for successful response code and treat everything else as failure.
0

Featured Post

Technology Partners: We Want Your Opinion!

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

After being asked a question last year, I went into one of my moods where I did some research and code just for the fun and learning of it all.  Subsequently, from this journey, I put together this article on "Range Searching Using Visual Basic.NET …
In this post we will learn different types of Android Layout and some basics of an Android App.
Viewers will learn about the regular for loop in Java and how to use it. Definition: Break the for loop down into 3 parts: Syntax when using for loops: Example using a for loop:
This video teaches viewers about errors in exception handling.

705 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question